Toyota 2GR-FE Manual page 898

ST–36
DTC
DESCRIPTION
This DTC is output when there is a problem in the IG1D output circuit, which is from the inside of the main
body ECU to the IG1 relay.
HINT:
When the main body ECU is replaced with a new one and the negative (-) battery terminal is connected,
the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the
power source mode that was selected when the battery was removed is restored.
After the main body ECU is replaced, perform the registration procedures for the engine immobiliser
system (See page EI-8).
DTC No.
B2272
WIRING DIAGRAM
Instrument Panel J/B
10
IF
To Each System
ST
INSPECTION PROCEDURE
1
READ VALUE OF INTELLIGENT TESTER
2GR-FE STARTING – SMART KEY SYSTEM
B2272 Ignition 1 Monitor Malfunction
DTC Detection Condition
IG1 relay actuation circuit inside main body ECU or
other related circuit is malfunctioning
GAUGE No. 1
ECU IG No. 1
WIP
WASH
A/C No. 2
S-HTR
ECU IG No. 2
(a) Connect the intelligent tester to the DLC3.
• Main body ECU
• IG1 relay
• Wire harness or connector
IG1 Relay
9
1 2
II
1
3 5
IA
Trouble Area
Main Body ECU
3
IG1D
E7
From Battery
B137972E01